MSA G1 SCBA Operating Manual page 29

Put the control module on a horizontal surface to make sure the white light illuminates the pressure
gauge. Make sure the readings on the graphical display and analog gauge are consistent with the
cylinder pressure within ±5 percent (110/2216 psi, 225/4500 psi, 275/5500 psi).
Both RESET buttons on the control module have the same function. Use one button to reset the
motion alarm and the other button to test the manual alarm.
To test correct operation of the HUD, control module, power module, and low-pressure warning
device, monitor the control module gauge and display when an alarm occurs.
(1) Turn the handwheel counterclockwise to open the cylinder valve and pressurize the system.
(2) Monitor the starting sequence of the LEDs on the regulator.
(3) Listen for the sound the power module makes and for the primary low-pressure warning alarm.
(4) Make sure the buddy lights flash green.
(5) Make sure the pressure gauge and LCD (if configured) show the correct pressure.
(6) Let the control module stay motionless for approximately 20 seconds.
(7) Listen for the tones of the PASS pre-alarm.
(8) Make sure the buddy lights flash red.
(9) Make sure the red LED flashes in the HUD.
(10) Shake the control module to reset the alarm before a full alarm occurs.
(11) Let the control module stay motionless until the full alarm occurs (30 seconds).
(12) Listen for the tones of the PASS full alarm.
(13) Make sure the buddy lights flash red.
(14) Make sure the red LED shows in the HUD.
(15) Shake the control mode to make sure shaking does not reset the full alarm.
(16) To reset the PASS alarm, push the left green RESET button on the side of the control module
twice within approximately 1 second.
G1 SCBA 2018 Edition
Functional Tests
29
US